How Would You Like to Calculate Your Damper Volume?

By completely ignoring the mass of the system which has to be accelerated & the drag of the pipe work in which is has to flow and thereby assuming that one will have total pulsation, you can then apply the gas compression laws to establish the necessary volume (V) of a hydro-pneumatic device.P1T1V1 = P2T2V2

Selecting Pulsation Dampeners for Different Pump Systems.
Flow through pulsation dampers are at least 3 times more efficient than T off line accumulators.
Dampeners that do, flow goes through, but pressure pulsation does not.The Smooth Flow People